22540650 has 96 divisors (see below), whose sum is σ = 64281600. Its totient is φ = 5169600.

The previous prime is 22540649. The next prime is 22540711. The reversal of 22540650 is 5604522.

22540650 = T₃₅₆ + T₃₅₇ + ... + T₅₆₄.

It is a self number, because there is not a number n which added to its sum of digits gives 22540650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30991 + ... + 31709.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

Almost surely, 2^22540650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22540650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32140800).

22540650 is an abundant number, since it is smaller than the sum of its proper divisors (41740950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22540650 is a wasteful number, since it uses less digits than its factorization.

22540650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 22540650 is about 4747.6994428881. The cubic root of 22540650 is about 282.4807202234.

It can be divided in two parts, 225406 and 50, that added together give a triangular number (225456 = T₆₇₁).

The spelling of 22540650 in words is "twenty-two million, five hundred forty thousand, six hundred fifty".